This is nice feature that is part of 10.1.89 onwards. It makes it convenient to group components with tags or add/remove important tags like #autostart to indicate which components should be started when IguanaX is started. To use this feature
Select the components you wish to tag on the dashboard
Check them just like you would with any other bulk operation.
This is where filtering and bulk selection becomes very powerful. For instance you can filter on say #autostart tags and then remove them all.
Select Edit Tags from the Bulk Actions at the bottom of the list
Then in the dialog that opens up enter tags you wish to add or remove
Click save and you are done
All the components that were selected will have the tags added or removed.
This make it very much easier to manage many components since #tags are the key to many functions in IguanaX like log purging rules and Autostarting Components.